40135426 has 16 divisors (see below), whose sum is σ = 61785504. Its totient is φ = 19543104.

The previous prime is 40135423. The next prime is 40135427. The reversal of 40135426 is 62453104.

40135426 = 395² + 396² + ... + 566².

It is a super-2 number, since 2×40135426² = 3221704840402952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40135426.

It is not an unprimeable number, because it can be changed into a prime (40135423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50605 + ... + 51391.

It is an arithmetic number, because the mean of its divisors is an integer number (3861594).

Almost surely, 2^40135426 is an apocalyptic number.

40135426 is a deficient number, since it is larger than the sum of its proper divisors (21650078).

40135426 is a wasteful number, since it uses less digits than its factorization.

40135426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 40135426 is about 6335.2526390034. The cubic root of 40135426 is about 342.3807132500.

The spelling of 40135426 in words is "forty million, one hundred thirty-five thousand, four hundred twenty-six".