91406740 has 24 divisors (see below), whose sum is σ = 192521952. Its totient is φ = 36454560.

The previous prime is 91406683. The next prime is 91406743. The reversal of 91406740 is 4760419.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91406743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355 + ... + 13525.

It is an arithmetic number, because the mean of its divisors is an integer number (8021748).

Almost surely, 2^91406740 is an apocalyptic number.

It is an amenable number.

91406740 is an abundant number, since it is smaller than the sum of its proper divisors (101115212).

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

91406740 is a wasteful number, since it uses less digits than its factorization.

91406740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13527 (or 13525 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 91406740 is about 9560.6872137938. The cubic root of 91406740 is about 450.4632924062.

The spelling of 91406740 in words is "ninety-one million, four hundred six thousand, seven hundred forty".