40290352 has 10 divisors (see below), whose sum is σ = 78062588. Its totient is φ = 20145168.

The previous prime is 40290347. The next prime is 40290377. The reversal of 40290352 is 25309204.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259058 + ... + 1259089.

Almost surely, 2^40290352 is an apocalyptic number.

It is an amenable number.

40290352 is a deficient number, since it is larger than the sum of its proper divisors (37772236).

40290352 is a wasteful number, since it uses less digits than its factorization.

40290352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518155 (or 2518149 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40290352 is about 6347.4681566748. The cubic root of 40290352 is about 342.8206867322.

Adding to 40290352 its reverse (25309204), we get a palindrome (65599556).

The spelling of 40290352 in words is "forty million, two hundred ninety thousand, three hundred fifty-two".