69429940 has 24 divisors (see below), whose sum is σ = 147651840. Its totient is φ = 27419808.

The previous prime is 69429923. The next prime is 69429979. The reversal of 69429940 is 4992496.

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, 20392 + ... + 23551.

It is an arithmetic number, because the mean of its divisors is an integer number (6152160).

Almost surely, 2^69429940 is an apocalyptic number.

It is an amenable number.

69429940 is an abundant number, since it is smaller than the sum of its proper divisors (78221900).

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

69429940 is a wasteful number, since it uses less digits than its factorization.

69429940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44031 (or 44029 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 69429940 is about 8332.4630212201. The cubic root of 69429940 is about 411.0067269004.

The spelling of 69429940 in words is "sixty-nine million, four hundred twenty-nine thousand, nine hundred forty".