1402340157 has 12 divisors (see below), whose sum is σ = 2026017760. Its totient is φ = 934701768.

The previous prime is 1402340141. The next prime is 1402340189. The reversal of 1402340157 is 7510432041.

It is not a de Polignac number, because 1402340157 - 2⁴ = 1402340141 is a prime.

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 1402340157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402340117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41094 + ... + 67032.

Almost surely, 2^1402340157 is an apocalyptic number.

It is an amenable number.

1402340157 is a deficient number, since it is larger than the sum of its proper divisors (623677603).

1402340157 is a wasteful number, since it uses less digits than its factorization.

1402340157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31952 (or 31949 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1402340157 is about 37447.8324739897. The cubic root of 1402340157 is about 1119.3119064779.

Adding to 1402340157 its reverse (7510432041), we get a palindrome (8912772198).

The spelling of 1402340157 in words is "one billion, four hundred two million, three hundred forty thousand, one hundred fifty-seven".