29213940 has 48 divisors (see below), whose sum is σ = 93485952. Its totient is φ = 6677376.

The previous prime is 29213923. The next prime is 29213953. The reversal of 29213940 is 4931292.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 29213898 and 29213907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34359 + ... + 35198.

It is an arithmetic number, because the mean of its divisors is an integer number (1947624).

Almost surely, 2^29213940 is an apocalyptic number.

29213940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29213940 is an abundant number, since it is smaller than the sum of its proper divisors (64272012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29213940 is a wasteful number, since it uses less digits than its factorization.

29213940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69576 (or 69574 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 29213940 is about 5404.9921369045. The cubic root of 29213940 is about 307.9853397194.

The spelling of 29213940 in words is "twenty-nine million, two hundred thirteen thousand, nine hundred forty".