40629620 has 24 divisors (see below), whose sum is σ = 87139584. Its totient is φ = 15905696.

The previous prime is 40629607. The next prime is 40629629. The reversal of 40629620 is 2692604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40629629) 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, 20672 + ... + 22551.

It is an arithmetic number, because the mean of its divisors is an integer number (3630816).

Almost surely, 2^40629620 is an apocalyptic number.

It is an amenable number.

40629620 is an abundant number, since it is smaller than the sum of its proper divisors (46509964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40629620 is a wasteful number, since it uses less digits than its factorization.

40629620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43279 (or 43277 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 40629620 is about 6374.1368043053. The cubic root of 40629620 is about 343.7802476965.

The spelling of 40629620 in words is "forty million, six hundred twenty-nine thousand, six hundred twenty".