1210400534 has 16 divisors (see below), whose sum is σ = 2098288800. Its totient is φ = 512913984.

The previous prime is 1210400531. The next prime is 1210400557. The reversal of 1210400534 is 4350040121.

It is a super-3 number, since 3×1210400534³ (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 (1210400531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484469 + ... + 486960.

It is an arithmetic number, because the mean of its divisors is an integer number (131143050).

Almost surely, 2^1210400534 is an apocalyptic number.

1210400534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1210400534 is a deficient number, since it is larger than the sum of its proper divisors (887888266).

1210400534 is an equidigital number, since it uses as much as digits as its factorization.

1210400534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971527.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1210400534 is about 34790.8110569443. The cubic root of 1210400534 is about 1065.7198022875.

Adding to 1210400534 its reverse (4350040121), we get a palindrome (5560440655).

The spelling of 1210400534 in words is "one billion, two hundred ten million, four hundred thousand, five hundred thirty-four".