1230978494 has 8 divisors (see below), whose sum is σ = 1848282840. Its totient is φ = 614884216.

The previous prime is 1230978467. The next prime is 1230978499. The reversal of 1230978494 is 4948790321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1230978494³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230978499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299969 + ... + 304044.

It is an arithmetic number, because the mean of its divisors is an integer number (231035355).

Almost surely, 2^1230978494 is an apocalyptic number.

1230978494 is a deficient number, since it is larger than the sum of its proper divisors (617304346).

1230978494 is a wasteful number, since it uses less digits than its factorization.

1230978494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605034.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 1230978494 is about 35085.3031054315. The cubic root of 1230978494 is about 1071.7253133135.

The spelling of 1230978494 in words is "one billion, two hundred thirty million, nine hundred seventy-eight thousand, four hundred ninety-four".