122402340 has 60 divisors (see below), whose sum is σ = 383985756. Its totient is φ = 32640192.

The previous prime is 122402303. The next prime is 122402347. The reversal of 122402340 is 43204221.

It can be written as a sum of positive squares in 2 ways, for example, as 79709184 + 42693156 = 8928^2 + 6534^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122402347) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36159 + ... + 39398.

Almost surely, 2^122402340 is an apocalyptic number.

122402340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122402340 is an abundant number, since it is smaller than the sum of its proper divisors (261583416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122402340 is a wasteful number, since it uses less digits than its factorization.

122402340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75578 (or 75567 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 122402340 is about 11063.5591018442. The cubic root of 122402340 is about 496.5121801304.

Adding to 122402340 its reverse (43204221), we get a palindrome (165606561).

The spelling of 122402340 in words is "one hundred twenty-two million, four hundred two thousand, three hundred forty".