45243190 has 16 divisors (see below), whose sum is σ = 84246480. Its totient is φ = 17473120.

The previous prime is 45243173. The next prime is 45243197. The reversal of 45243190 is 9134254.

It is a super-2 number, since 2×45243190² = 4093892482752200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45243197) 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, 77716 + ... + 78295.

It is an arithmetic number, because the mean of its divisors is an integer number (5265405).

Almost surely, 2^45243190 is an apocalyptic number.

45243190 is a deficient number, since it is larger than the sum of its proper divisors (39003290).

45243190 is a wasteful number, since it uses less digits than its factorization.

45243190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156047.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 45243190 is about 6726.3058211770. The cubic root of 45243190 is about 356.3289210603.

The spelling of 45243190 in words is "forty-five million, two hundred forty-three thousand, one hundred ninety".