40230297 has 8 divisors (see below), whose sum is σ = 59600480. Its totient is φ = 26820180.

The previous prime is 40230287. The next prime is 40230299. The reversal of 40230297 is 79203204.

It is not a de Polignac number, because 40230297 - 2¹² = 40226201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1490011 = 40230297 / (4 + 0 + 2 + 3 + 0 + 2 + 9 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40230297.

It is not an unprimeable number, because it can be changed into a prime (40230299) 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, 744979 + ... + 745032.

It is an arithmetic number, because the mean of its divisors is an integer number (7450060).

Almost surely, 2^40230297 is an apocalyptic number.

It is an amenable number.

40230297 is a deficient number, since it is larger than the sum of its proper divisors (19370183).

40230297 is a wasteful number, since it uses less digits than its factorization.

40230297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490020 (or 1490014 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 40230297 is about 6342.7357662132. The cubic root of 40230297 is about 342.6502709624.

The spelling of 40230297 in words is "forty million, two hundred thirty thousand, two hundred ninety-seven".