69906940 has 24 divisors (see below), whose sum is σ = 147117600. Its totient is φ = 27903168.

The previous prime is 69906937. The next prime is 69906961. The reversal of 69906940 is 4960996.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6586 + ... + 13534.

It is an arithmetic number, because the mean of its divisors is an integer number (6129900).

Almost surely, 2^69906940 is an apocalyptic number.

It is an amenable number.

69906940 is an abundant number, since it is smaller than the sum of its proper divisors (77210660).

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

69906940 is a wasteful number, since it uses less digits than its factorization.

69906940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7461 (or 7459 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 69906940 is about 8361.0370170213. The cubic root of 69906940 is about 411.9458171748.

The spelling of 69906940 in words is "sixty-nine million, nine hundred six thousand, nine hundred forty".