7122402 has 24 divisors (see below), whose sum is σ = 17636736. Its totient is φ = 2034936.

The previous prime is 7122377. The next prime is 7122407. The reversal of 7122402 is 2042217.

It is a super-2 number, since 2×7122402² = 101457220499208, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (7122407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28138 + ... + 28389.

It is an arithmetic number, because the mean of its divisors is an integer number (734864).

Almost surely, 2^7122402 is an apocalyptic number.

7122402 is an abundant number, since it is smaller than the sum of its proper divisors (10514334).

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

7122402 is a wasteful number, since it uses less digits than its factorization.

7122402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56542 (or 56539 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 7122402 is about 2668.7828686501. The cubic root of 7122402 is about 192.4016656365.

Adding to 7122402 its reverse (2042217), we get a palindrome (9164619).

The spelling of 7122402 in words is "seven million, one hundred twenty-two thousand, four hundred two".