45939629 has 4 divisors (see below), whose sum is σ = 45968220. Its totient is φ = 45911040.

The previous prime is 45939623. The next prime is 45939643. The reversal of 45939629 is 92693954.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21949225 + 23990404 = 4685^2 + 4898^2 .

It is a cyclic number.

It is not a de Polignac number, because 45939629 - 2⁸ = 45939373 is a prime.

It is a super-2 number, since 2×45939629² = 4220899025315282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45939623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11732 + ... + 15149.

It is an arithmetic number, because the mean of its divisors is an integer number (11492055).

Almost surely, 2^45939629 is an apocalyptic number.

It is an amenable number.

45939629 is a deficient number, since it is larger than the sum of its proper divisors (28591).

45939629 is a wasteful number, since it uses less digits than its factorization.

45939629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28590.

The product of its digits is 524880, while the sum is 47.

The square root of 45939629 is about 6777.8779127394. The cubic root of 45939629 is about 358.1479705202.

The spelling of 45939629 in words is "forty-five million, nine hundred thirty-nine thousand, six hundred twenty-nine".