69401940 has 24 divisors (see below), whose sum is σ = 194325600. Its totient is φ = 18507168.

The previous prime is 69401929. The next prime is 69401953. The reversal of 69401940 is 4910496.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 578290 + ... + 578409.

It is an arithmetic number, because the mean of its divisors is an integer number (8096900).

Almost surely, 2^69401940 is an apocalyptic number.

69401940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69401940 is an abundant number, since it is smaller than the sum of its proper divisors (124923660).

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

69401940 is a wasteful number, since it uses less digits than its factorization.

69401940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156711 (or 1156709 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 69401940 is about 8330.7826763156. The cubic root of 69401940 is about 410.9514686274.

The spelling of 69401940 in words is "sixty-nine million, four hundred one thousand, nine hundred forty".