70449600 has 168 divisors, whose sum is σ = 249133360. Its totient is φ = 17326080.

The previous prime is 70449583. The next prime is 70449619. The reversal of 70449600 is 694407.

It is a super-2 number, since 2×70449600² = 9926292280320000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61836 + ... + 62964.

Almost surely, 2^70449600 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70449600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124566680).

70449600 is an abundant number, since it is smaller than the sum of its proper divisors (178683760).

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

70449600 is a wasteful number, since it uses less digits than its factorization.

70449600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 70449600 is about 8393.4259989589. The cubic root of 70449600 is about 413.0089951862.

The spelling of 70449600 in words is "seventy million, four hundred forty-nine thousand, six hundred".