2391217402 has 32 divisors (see below), whose sum is σ = 4368494592. Its totient is φ = 959388144.

The previous prime is 2391217391. The next prime is 2391217403. The reversal of 2391217402 is 2047121932.

2391217402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2391217403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63868 + ... + 94135.

It is an arithmetic number, because the mean of its divisors is an integer number (136515456).

Almost surely, 2^2391217402 is an apocalyptic number.

2391217402 is a deficient number, since it is larger than the sum of its proper divisors (1977277190).

2391217402 is a wasteful number, since it uses less digits than its factorization.

2391217402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158082.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 2391217402 is about 48900.0756850130. The cubic root of 2391217402 is about 1337.2307482812.

It can be divided in two parts, 23912 and 17402, that added together give a palindrome (41314).

The spelling of 2391217402 in words is "two billion, three hundred ninety-one million, two hundred seventeen thousand, four hundred two".