45291730 has 16 divisors (see below), whose sum is σ = 88936704. Its totient is φ = 16469680.

The previous prime is 45291703. The next prime is 45291731. The reversal of 45291730 is 3719254.

It is a junction number, because it is equal to n+sod(n) for n = 45291692 and 45291701.

It is not an unprimeable number, because it can be changed into a prime (45291731) 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, 205762 + ... + 205981.

It is an arithmetic number, because the mean of its divisors is an integer number (5558544).

Almost surely, 2^45291730 is an apocalyptic number.

45291730 is a deficient number, since it is larger than the sum of its proper divisors (43644974).

45291730 is a wasteful number, since it uses less digits than its factorization.

45291730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411761.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 45291730 is about 6729.9130752187. The cubic root of 45291730 is about 356.4563068908.

The spelling of 45291730 in words is "forty-five million, two hundred ninety-one thousand, seven hundred thirty".