70740028 has 6 divisors (see below), whose sum is σ = 123795056. Its totient is φ = 35370012.

The previous prime is 70740023. The next prime is 70740067. The reversal of 70740028 is 82004707.

It is a super-2 number, since 2×70740028² = 10008303122881568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70739978 and 70740005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70740023) by changing a digit.

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 as a sum of consecutive naturals, namely, 8842500 + ... + 8842507.

Almost surely, 2^70740028 is an apocalyptic number.

It is an amenable number.

70740028 is a deficient number, since it is larger than the sum of its proper divisors (53055028).

70740028 is a wasteful number, since it uses less digits than its factorization.

70740028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17685011 (or 17685009 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 70740028 is about 8410.7091258704. The cubic root of 70740028 is about 413.5757593351.

The spelling of 70740028 in words is "seventy million, seven hundred forty thousand, twenty-eight".