70431760 has 80 divisors (see below), whose sum is σ = 188487936. Its totient is φ = 23975424.

The previous prime is 70431743. The next prime is 70431761. The reversal of 70431760 is 6713407.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (70431761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96517 + ... + 97243.

Almost surely, 2^70431760 is an apocalyptic number.

70431760 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70431760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94243968).

70431760 is an abundant number, since it is smaller than the sum of its proper divisors (118056176).

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

70431760 is a wasteful number, since it uses less digits than its factorization.

70431760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 70431760 is about 8392.3631951912. The cubic root of 70431760 is about 412.9741300604.

The spelling of 70431760 in words is "seventy million, four hundred thirty-one thousand, seven hundred sixty".