40720322 has 16 divisors (see below), whose sum is σ = 62309760. Its totient is φ = 19953648.

The previous prime is 40720319. The next prime is 40720331. The reversal of 40720322 is 22302704.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40720294 and 40720303.

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, 30023 + ... + 31349.

It is an arithmetic number, because the mean of its divisors is an integer number (3894360).

Almost surely, 2^40720322 is an apocalyptic number.

40720322 is a deficient number, since it is larger than the sum of its proper divisors (21589438).

40720322 is a wasteful number, since it uses less digits than its factorization.

40720322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 40720322 is about 6381.2476836431. The cubic root of 40720322 is about 344.0358771397.

The spelling of 40720322 in words is "forty million, seven hundred twenty thousand, three hundred twenty-two".