40377632 has 12 divisors (see below), whose sum is σ = 79493526. Its totient is φ = 20188800.

The previous prime is 40377613. The next prime is 40377637. The reversal of 40377632 is 23677304.

It can be written as a sum of positive squares in only one way, i.e., 37405456 + 2972176 = 6116^2 + 1724^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 1261801 = 40377632 / (4 + 0 + 3 + 7 + 7 + 6 + 3 + 2).

It is not an unprimeable number, because it can be changed into a prime (40377637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630869 + ... + 630932.

Almost surely, 2^40377632 is an apocalyptic number.

It is an amenable number.

40377632 is a deficient number, since it is larger than the sum of its proper divisors (39115894).

40377632 is a wasteful number, since it uses less digits than its factorization.

40377632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261811 (or 1261803 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 40377632 is about 6354.3396195041. The cubic root of 40377632 is about 343.0680562059.

The spelling of 40377632 in words is "forty million, three hundred seventy-seven thousand, six hundred thirty-two".