45155420 has 12 divisors (see below), whose sum is σ = 94826424. Its totient is φ = 18062160.

The previous prime is 45155413. The next prime is 45155423. The reversal of 45155420 is 2455154.

It is a self number, because there is not a number n which added to its sum of digits gives 45155420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45155423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128866 + ... + 1128905.

It is an arithmetic number, because the mean of its divisors is an integer number (7902202).

Almost surely, 2^45155420 is an apocalyptic number.

It is an amenable number.

45155420 is an abundant number, since it is smaller than the sum of its proper divisors (49671004).

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

45155420 is a wasteful number, since it uses less digits than its factorization.

45155420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257780 (or 2257778 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 45155420 is about 6719.7782701515. The cubic root of 45155420 is about 356.0983505567.

The spelling of 45155420 in words is "forty-five million, one hundred fifty-five thousand, four hundred twenty".