45409250 has 32 divisors (see below), whose sum is σ = 86306688. Its totient is φ = 17886000.

The previous prime is 45409241. The next prime is 45409253. The reversal of 45409250 is 5290454.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45409253) 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, 15395 + ... + 18105.

It is an arithmetic number, because the mean of its divisors is an integer number (2697084).

Almost surely, 2^45409250 is an apocalyptic number.

45409250 is a deficient number, since it is larger than the sum of its proper divisors (40897438).

45409250 is a wasteful number, since it uses less digits than its factorization.

45409250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795 (or 2785 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 45409250 is about 6738.6385865396. The cubic root of 45409250 is about 356.7643437409.

The spelling of 45409250 in words is "forty-five million, four hundred nine thousand, two hundred fifty".