70045450 has 24 divisors (see below), whose sum is σ = 130702572. Its totient is φ = 27928320.

The previous prime is 70045447. The next prime is 70045483. The reversal of 70045450 is 5454007.

It can be written as a sum of positive squares in 6 ways, for example, as 16184529 + 53860921 = 4023^2 + 7339^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14772 + ... + 18928.

Almost surely, 2^70045450 is an apocalyptic number.

70045450 is a deficient number, since it is larger than the sum of its proper divisors (60657122).

70045450 is a wasteful number, since it uses less digits than its factorization.

70045450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506 (or 4501 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 70045450 is about 8369.3159816081. The cubic root of 70045450 is about 412.2177070722.

Adding to 70045450 its reverse (5454007), we get a palindrome (75499457).

The spelling of 70045450 in words is "seventy million, forty-five thousand, four hundred fifty".