464401778 has 8 divisors (see below), whose sum is σ = 701687772. Its totient is φ = 230505856.

The previous prime is 464401753. The next prime is 464401787. The reversal of 464401778 is 877104464.

It can be written as a sum of positive squares in 2 ways, for example, as 453988249 + 10413529 = 21307^2 + 3227^2 .

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

It is a super-2 number, since 2×464401778² = 431338022819122568, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847175 + ... + 847722.

Almost surely, 2^464401778 is an apocalyptic number.

464401778 is a deficient number, since it is larger than the sum of its proper divisors (237285994).

464401778 is a wasteful number, since it uses less digits than its factorization.

464401778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695036.

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 464401778 is about 21549.9832482533. The cubic root of 464401778 is about 774.3987166885.

The spelling of 464401778 in words is "four hundred sixty-four million, four hundred one thousand, seven hundred seventy-eight".