78011490 has 16 divisors (see below), whose sum is σ = 187227648. Its totient is φ = 20803056.

The previous prime is 78011489. The next prime is 78011519. The reversal of 78011490 is 9411087.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2600383 = 78011490 / (7 + 8 + 0 + 1 + 1 + 4 + 9 + 0).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300162 + ... + 1300221.

It is an arithmetic number, because the mean of its divisors is an integer number (11701728).

Almost surely, 2^78011490 is an apocalyptic number.

78011490 is an abundant number, since it is smaller than the sum of its proper divisors (109216158).

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

78011490 is a wasteful number, since it uses less digits than its factorization.

78011490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600393.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 78011490 is about 8832.4113355301. The cubic root of 78011490 is about 427.2868469894.

The spelling of 78011490 in words is "seventy-eight million, eleven thousand, four hundred ninety".