45397870 has 32 divisors (see below), whose sum is σ = 93888000. Its totient is φ = 15482016.

The previous prime is 45397867. The next prime is 45397873. The reversal of 45397870 is 7879354.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45397867) and next prime (45397873).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45397873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12301 + ... + 15559.

It is an arithmetic number, because the mean of its divisors is an integer number (2934000).

Almost surely, 2^45397870 is an apocalyptic number.

45397870 is an abundant number, since it is smaller than the sum of its proper divisors (48490130).

45397870 is a wasteful number, since it uses less digits than its factorization.

45397870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 45397870 is about 6737.7941494231. The cubic root of 45397870 is about 356.7345383787.

The spelling of 45397870 in words is "forty-five million, three hundred ninety-seven thousand, eight hundred seventy".