69426140 has 36 divisors (see below), whose sum is σ = 169600536. Its totient is φ = 23802912.

The previous prime is 69426127. The next prime is 69426157. The reversal of 69426140 is 4162496.

It is a happy number.

It is a super-4 number, since 4×69426140⁴ (a number of 32 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 69426097 and 69426106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34442 + ... + 36401.

It is an arithmetic number, because the mean of its divisors is an integer number (4711126).

Almost surely, 2^69426140 is an apocalyptic number.

It is an amenable number.

69426140 is an abundant number, since it is smaller than the sum of its proper divisors (100174396).

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

69426140 is a wasteful number, since it uses less digits than its factorization.

69426140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70866 (or 70857 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 69426140 is about 8332.2349942857. The cubic root of 69426140 is about 410.9992284347. Note that the first 3 decimals are identical.

The spelling of 69426140 in words is "sixty-nine million, four hundred twenty-six thousand, one hundred forty".