45721450 has 12 divisors (see below), whose sum is σ = 85041990. Its totient is φ = 18288560.

The previous prime is 45721439. The next prime is 45721451. The reversal of 45721450 is 5412754.

It can be written as a sum of positive squares in 3 ways, for example, as 38576521 + 7144929 = 6211^2 + 2673^2 .

It is not an unprimeable number, because it can be changed into a prime (45721451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 457165 + ... + 457264.

Almost surely, 2^45721450 is an apocalyptic number.

45721450 is a deficient number, since it is larger than the sum of its proper divisors (39320540).

45721450 is a wasteful number, since it uses less digits than its factorization.

45721450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914441 (or 914436 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 45721450 is about 6761.7638231456. The cubic root of 45721450 is about 357.5800919222.

The spelling of 45721450 in words is "forty-five million, seven hundred twenty-one thousand, four hundred fifty".