40437634 has 16 divisors (see below), whose sum is σ = 63430848. Its totient is φ = 19297872.

The previous prime is 40437623. The next prime is 40437647. The reversal of 40437634 is 43673404.

It is a junction number, because it is equal to n+sod(n) for n = 40437596 and 40437605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35644 + ... + 36760.

It is an arithmetic number, because the mean of its divisors is an integer number (3964428).

Almost surely, 2^40437634 is an apocalyptic number.

40437634 is a deficient number, since it is larger than the sum of its proper divisors (22993214).

40437634 is a wasteful number, since it uses less digits than its factorization.

40437634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929.

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 40437634 is about 6359.0592071469. The cubic root of 40437634 is about 343.2379075191.

The spelling of 40437634 in words is "forty million, four hundred thirty-seven thousand, six hundred thirty-four".