783428530 has 32 divisors (see below), whose sum is σ = 1480581504. Its totient is φ = 297893376.

The previous prime is 783428509. The next prime is 783428549. The reversal of 783428530 is 35824387.

It is a super-2 number, since 2×783428530² = 1227520523235921800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27042 + ... + 47938.

It is an arithmetic number, because the mean of its divisors is an integer number (46268172).

Almost surely, 2^783428530 is an apocalyptic number.

783428530 is a deficient number, since it is larger than the sum of its proper divisors (697152974).

783428530 is a wasteful number, since it uses less digits than its factorization.

783428530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21090.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 783428530 is about 27989.7933182794. The cubic root of 783428530 is about 921.8631626250.

The spelling of 783428530 in words is "seven hundred eighty-three million, four hundred twenty-eight thousand, five hundred thirty".